Respuesta :
Answer:
A.substance made of atoms of two or more elements
Explanation:
					                   Well since it’s a chemical bonding of two chemicals yeah I’d say it’s A since 
B: not a shell
C:maybe but I’m not too sure
D: not a mixture of METALS
					                
					             B: not a shell
C:maybe but I’m not too sure
D: not a mixture of METALS
 
			                  